mirror of
https://github.com/coding-horror/basic-computer-games.git
synced 2025-12-12 07:40:50 -08:00
c500424956
print_with_tab / print_with_whitespace is trivial with Python string formatting and was mostly used in only 2 lines.
79 lines
1.7 KiB
Python
79 lines
1.7 KiB
Python
"""
|
|
KINEMA
|
|
|
|
A kinematics physics quiz.
|
|
|
|
Ported by Dave LeCompte
|
|
"""
|
|
|
|
import random
|
|
|
|
# We approximate gravity from 9.8 meters/second squared to 10, which
|
|
# is only off by about 2%. 10 is also a lot easier for people to use
|
|
# for mental math.
|
|
|
|
g = 10
|
|
|
|
# We only expect the student to get within this percentage of the
|
|
# correct answer. This isn't rocket science.
|
|
|
|
EXPECTED_ACCURACY_PERCENT = 15
|
|
|
|
|
|
def do_quiz():
|
|
print()
|
|
print()
|
|
num_questions_correct = 0
|
|
|
|
# pick random initial velocity
|
|
v0 = random.randint(5, 40)
|
|
print(f"A BALL IS THROWN UPWARDS AT {v0} METERS PER SECOND.")
|
|
print()
|
|
|
|
answer = v0**2 / (2 * g)
|
|
num_questions_correct += ask_player("HOW HIGH WILL IT GO (IN METERS)?", answer)
|
|
|
|
answer = 2 * v0 / g
|
|
num_questions_correct += ask_player(
|
|
"HOW LONG UNTIL IT RETURNS (IN SECONDS)?", answer
|
|
)
|
|
|
|
t = 1 + random.randint(0, 2 * v0) // g
|
|
answer = v0 - g * t
|
|
num_questions_correct += ask_player(
|
|
f"WHAT WILL ITS VELOCITY BE AFTER {t} SECONDS?", answer
|
|
)
|
|
|
|
print()
|
|
print(f"{num_questions_correct} right out of 3.")
|
|
if num_questions_correct >= 2:
|
|
print(" NOT BAD.")
|
|
|
|
|
|
def ask_player(question, answer):
|
|
print(question)
|
|
player_answer = float(input())
|
|
|
|
accuracy_frac = EXPECTED_ACCURACY_PERCENT / 100.0
|
|
if abs((player_answer - answer) / answer) < accuracy_frac:
|
|
print("CLOSE ENOUGH.")
|
|
score = 1
|
|
else:
|
|
print("NOT EVEN CLOSE....")
|
|
score = 0
|
|
print(f"CORRECT ANSWER IS {answer}")
|
|
print()
|
|
return score
|
|
|
|
|
|
def main() -> None:
|
|
print(" " * 33 + "KINEMA")
|
|
print(" " * 15 + "CREATIVE COMPUTING MORRISTOWN, NEW JERSEY\n\n\n")
|
|
|
|
while True:
|
|
do_quiz()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|